| // Copyright 2012 The Chromium Authors |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include <stddef.h> |
| |
| #include <string> |
| #include <string_view> |
| |
| #include "base/strings/string_piece.h" |
| #include "base/strings/utf_string_conversions.h" |
| #include "testing/gtest/include/gtest/gtest.h" |
| |
| namespace base { |
| |
| template <typename CharT> |
| class CommonStringPieceTest : public ::testing::Test { |
| public: |
| static std::string as_string(const char* input) { return input; } |
| static const std::string& as_string(const std::string& input) { |
| return input; |
| } |
| }; |
| |
| template <> |
| class CommonStringPieceTest<char16_t> : public ::testing::Test { |
| public: |
| static std::u16string as_string(const char* input) { |
| return UTF8ToUTF16(input); |
| } |
| static std::u16string as_string(const std::string& input) { |
| return UTF8ToUTF16(input); |
| } |
| }; |
| |
| typedef ::testing::Types<char, char16_t> SupportedCharTypes; |
| |
| TYPED_TEST_SUITE(CommonStringPieceTest, SupportedCharTypes); |
| |
| TYPED_TEST(CommonStringPieceTest, CheckComparisonOperators) { |
| #define CMP_Y(op, x, y) \ |
| { \ |
| std::basic_string<TypeParam> lhs(TestFixture::as_string(x)); \ |
| std::basic_string<TypeParam> rhs(TestFixture::as_string(y)); \ |
| ASSERT_TRUE((BasicStringPiece<TypeParam>((lhs.c_str())) \ |
| op BasicStringPiece<TypeParam>((rhs.c_str())))); \ |
| ASSERT_TRUE(BasicStringPiece<TypeParam>(lhs) op rhs); \ |
| ASSERT_TRUE(lhs op BasicStringPiece<TypeParam>(rhs)); \ |
| ASSERT_TRUE((BasicStringPiece<TypeParam>((lhs.c_str())) \ |
| .compare(BasicStringPiece<TypeParam>((rhs.c_str()))) \ |
| op 0)); \ |
| } |
| |
| #define CMP_N(op, x, y) \ |
| { \ |
| std::basic_string<TypeParam> lhs(TestFixture::as_string(x)); \ |
| std::basic_string<TypeParam> rhs(TestFixture::as_string(y)); \ |
| ASSERT_FALSE((BasicStringPiece<TypeParam>((lhs.c_str())) \ |
| op BasicStringPiece<TypeParam>((rhs.c_str())))); \ |
| ASSERT_FALSE(BasicStringPiece<TypeParam>(lhs) op rhs); \ |
| ASSERT_FALSE(lhs op BasicStringPiece<TypeParam>(rhs)); \ |
| ASSERT_FALSE((BasicStringPiece<TypeParam>((lhs.c_str())) \ |
| .compare(BasicStringPiece<TypeParam>((rhs.c_str()))) \ |
| op 0)); \ |
| } |
| |
| CMP_Y(==, "", "") |
| CMP_Y(==, "a", "a") |
| CMP_Y(==, "aa", "aa") |
| CMP_N(==, "a", "") |
| CMP_N(==, "", "a") |
| CMP_N(==, "a", "b") |
| CMP_N(==, "a", "aa") |
| CMP_N(==, "aa", "a") |
| |
| CMP_N(!=, "", "") |
| CMP_N(!=, "a", "a") |
| CMP_N(!=, "aa", "aa") |
| CMP_Y(!=, "a", "") |
| CMP_Y(!=, "", "a") |
| CMP_Y(!=, "a", "b") |
| CMP_Y(!=, "a", "aa") |
| CMP_Y(!=, "aa", "a") |
| |
| CMP_Y(<, "a", "b") |
| CMP_Y(<, "a", "aa") |
| CMP_Y(<, "aa", "b") |
| CMP_Y(<, "aa", "bb") |
| CMP_N(<, "a", "a") |
| CMP_N(<, "b", "a") |
| CMP_N(<, "aa", "a") |
| CMP_N(<, "b", "aa") |
| CMP_N(<, "bb", "aa") |
| |
| CMP_Y(<=, "a", "a") |
| CMP_Y(<=, "a", "b") |
| CMP_Y(<=, "a", "aa") |
| CMP_Y(<=, "aa", "b") |
| CMP_Y(<=, "aa", "bb") |
| CMP_N(<=, "b", "a") |
| CMP_N(<=, "aa", "a") |
| CMP_N(<=, "b", "aa") |
| CMP_N(<=, "bb", "aa") |
| |
| CMP_N(>=, "a", "b") |
| CMP_N(>=, "a", "aa") |
| CMP_N(>=, "aa", "b") |
| CMP_N(>=, "aa", "bb") |
| CMP_Y(>=, "a", "a") |
| CMP_Y(>=, "b", "a") |
| CMP_Y(>=, "aa", "a") |
| CMP_Y(>=, "b", "aa") |
| CMP_Y(>=, "bb", "aa") |
| |
| CMP_N(>, "a", "a") |
| CMP_N(>, "a", "b") |
| CMP_N(>, "a", "aa") |
| CMP_N(>, "aa", "b") |
| CMP_N(>, "aa", "bb") |
| CMP_Y(>, "b", "a") |
| CMP_Y(>, "aa", "a") |
| CMP_Y(>, "b", "aa") |
| CMP_Y(>, "bb", "aa") |
| |
| std::string x; |
| for (int i = 0; i < 256; i++) { |
| x += 'a'; |
| std::string y = x; |
| CMP_Y(==, x, y); |
| for (int j = 0; j < i; j++) { |
| std::string z = x; |
| z[j] = 'b'; // Differs in position 'j' |
| CMP_N(==, x, z); |
| } |
| } |
| |
| #undef CMP_Y |
| #undef CMP_N |
| } |
| |
| TYPED_TEST(CommonStringPieceTest, CheckSTL) { |
| std::basic_string<TypeParam> alphabet( |
| TestFixture::as_string("abcdefghijklmnopqrstuvwxyz")); |
| std::basic_string<TypeParam> abc(TestFixture::as_string("abc")); |
| std::basic_string<TypeParam> xyz(TestFixture::as_string("xyz")); |
| std::basic_string<TypeParam> foobar(TestFixture::as_string("foobar")); |
| |
| BasicStringPiece<TypeParam> a(alphabet); |
| BasicStringPiece<TypeParam> b(abc); |
| BasicStringPiece<TypeParam> c(xyz); |
| BasicStringPiece<TypeParam> d(foobar); |
| BasicStringPiece<TypeParam> e; |
| std::basic_string<TypeParam> temp(TestFixture::as_string("123")); |
| temp += static_cast<TypeParam>(0); |
| temp += TestFixture::as_string("456"); |
| BasicStringPiece<TypeParam> f(temp); |
| |
| ASSERT_EQ(a[6], static_cast<TypeParam>('g')); |
| ASSERT_EQ(b[0], static_cast<TypeParam>('a')); |
| ASSERT_EQ(c[2], static_cast<TypeParam>('z')); |
| ASSERT_EQ(f[3], static_cast<TypeParam>('\0')); |
| ASSERT_EQ(f[5], static_cast<TypeParam>('5')); |
| |
| ASSERT_EQ(*d.data(), static_cast<TypeParam>('f')); |
| ASSERT_EQ(d.data()[5], static_cast<TypeParam>('r')); |
| ASSERT_EQ(e.data(), nullptr); |
| |
| ASSERT_EQ(*a.begin(), static_cast<TypeParam>('a')); |
| ASSERT_EQ(*(b.begin() + 2), static_cast<TypeParam>('c')); |
| ASSERT_EQ(*(c.end() - 1), static_cast<TypeParam>('z')); |
| |
| ASSERT_EQ(*a.rbegin(), static_cast<TypeParam>('z')); |
| ASSERT_EQ(*(b.rbegin() + 2), static_cast<TypeParam>('a')); |
| ASSERT_EQ(*(c.rend() - 1), static_cast<TypeParam>('x')); |
| ASSERT_EQ(a.rbegin() + 26, a.rend()); |
| |
| ASSERT_EQ(a.size(), 26U); |
| ASSERT_EQ(b.size(), 3U); |
| ASSERT_EQ(c.size(), 3U); |
| ASSERT_EQ(d.size(), 6U); |
| ASSERT_EQ(e.size(), 0U); |
| ASSERT_EQ(f.size(), 7U); |
| |
| ASSERT_TRUE(!d.empty()); |
| ASSERT_TRUE(d.begin() != d.end()); |
| ASSERT_EQ(d.begin() + 6, d.end()); |
| |
| ASSERT_TRUE(e.empty()); |
| ASSERT_EQ(e.begin(), e.end()); |
| |
| d = BasicStringPiece<TypeParam>(); |
| ASSERT_EQ(d.size(), 0U); |
| ASSERT_TRUE(d.empty()); |
| ASSERT_EQ(d.data(), nullptr); |
| ASSERT_EQ(d.begin(), d.end()); |
| |
| ASSERT_GE(a.max_size(), a.size()); |
| } |
| |
| TYPED_TEST(CommonStringPieceTest, CheckFind) { |
| typedef BasicStringPiece<TypeParam> Piece; |
| |
| std::basic_string<TypeParam> alphabet( |
| TestFixture::as_string("abcdefghijklmnopqrstuvwxyz")); |
| std::basic_string<TypeParam> abc(TestFixture::as_string("abc")); |
| std::basic_string<TypeParam> xyz(TestFixture::as_string("xyz")); |
| std::basic_string<TypeParam> foobar(TestFixture::as_string("foobar")); |
| |
| BasicStringPiece<TypeParam> a(alphabet); |
| BasicStringPiece<TypeParam> b(abc); |
| BasicStringPiece<TypeParam> c(xyz); |
| BasicStringPiece<TypeParam> d(foobar); |
| |
| d = Piece(); |
| Piece e; |
| std::basic_string<TypeParam> temp(TestFixture::as_string("123")); |
| temp.push_back('\0'); |
| temp += TestFixture::as_string("456"); |
| Piece f(temp); |
| |
| TypeParam buf[4] = {'%', '%', '%', '%'}; |
| ASSERT_EQ(a.copy(buf, 4), 4U); |
| ASSERT_EQ(buf[0], a[0]); |
| ASSERT_EQ(buf[1], a[1]); |
| ASSERT_EQ(buf[2], a[2]); |
| ASSERT_EQ(buf[3], a[3]); |
| ASSERT_EQ(a.copy(buf, 3, 7), 3U); |
| ASSERT_EQ(buf[0], a[7]); |
| ASSERT_EQ(buf[1], a[8]); |
| ASSERT_EQ(buf[2], a[9]); |
| ASSERT_EQ(buf[3], a[3]); |
| ASSERT_EQ(c.copy(buf, 99), 3U); |
| ASSERT_EQ(buf[0], c[0]); |
| ASSERT_EQ(buf[1], c[1]); |
| ASSERT_EQ(buf[2], c[2]); |
| ASSERT_EQ(buf[3], a[3]); |
| |
| ASSERT_EQ(Piece::npos, std::basic_string<TypeParam>::npos); |
| |
| ASSERT_EQ(a.find(b), 0U); |
| ASSERT_EQ(a.find(b, 1), Piece::npos); |
| ASSERT_EQ(a.find(c), 23U); |
| ASSERT_EQ(a.find(c, 9), 23U); |
| ASSERT_EQ(a.find(c, Piece::npos), Piece::npos); |
| ASSERT_EQ(b.find(c), Piece::npos); |
| ASSERT_EQ(b.find(c, Piece::npos), Piece::npos); |
| ASSERT_EQ(a.find(d), 0U); |
| ASSERT_EQ(a.find(e), 0U); |
| ASSERT_EQ(a.find(d, 12), 12U); |
| ASSERT_EQ(a.find(e, 17), 17U); |
| std::basic_string<TypeParam> not_found( |
| TestFixture::as_string("xx not found bb")); |
| Piece g(not_found); |
| ASSERT_EQ(a.find(g), Piece::npos); |
| // empty string nonsense |
| ASSERT_EQ(d.find(b), Piece::npos); |
| ASSERT_EQ(e.find(b), Piece::npos); |
| ASSERT_EQ(d.find(b, 4), Piece::npos); |
| ASSERT_EQ(e.find(b, 7), Piece::npos); |
| |
| size_t empty_search_pos = |
| std::basic_string<TypeParam>().find(std::basic_string<TypeParam>()); |
| ASSERT_EQ(d.find(d), empty_search_pos); |
| ASSERT_EQ(d.find(e), empty_search_pos); |
| ASSERT_EQ(e.find(d), empty_search_pos); |
| ASSERT_EQ(e.find(e), empty_search_pos); |
| ASSERT_EQ(d.find(d, 4), std::string().find(std::string(), 4)); |
| ASSERT_EQ(d.find(e, 4), std::string().find(std::string(), 4)); |
| ASSERT_EQ(e.find(d, 4), std::string().find(std::string(), 4)); |
| ASSERT_EQ(e.find(e, 4), std::string().find(std::string(), 4)); |
| |
| constexpr TypeParam kNul = '\0'; |
| ASSERT_EQ(a.find('a'), 0U); |
| ASSERT_EQ(a.find('c'), 2U); |
| ASSERT_EQ(a.find('z'), 25U); |
| ASSERT_EQ(a.find('$'), Piece::npos); |
| ASSERT_EQ(a.find(kNul), Piece::npos); |
| ASSERT_EQ(f.find(kNul), 3U); |
| ASSERT_EQ(f.find('3'), 2U); |
| ASSERT_EQ(f.find('5'), 5U); |
| ASSERT_EQ(g.find('o'), 4U); |
| ASSERT_EQ(g.find('o', 4), 4U); |
| ASSERT_EQ(g.find('o', 5), 8U); |
| ASSERT_EQ(a.find('b', 5), Piece::npos); |
| // empty string nonsense |
| ASSERT_EQ(d.find(kNul), Piece::npos); |
| ASSERT_EQ(e.find(kNul), Piece::npos); |
| ASSERT_EQ(d.find(kNul, 4), Piece::npos); |
| ASSERT_EQ(e.find(kNul, 7), Piece::npos); |
| ASSERT_EQ(d.find('x'), Piece::npos); |
| ASSERT_EQ(e.find('x'), Piece::npos); |
| ASSERT_EQ(d.find('x', 4), Piece::npos); |
| ASSERT_EQ(e.find('x', 7), Piece::npos); |
| |
| ASSERT_EQ(a.find(b.data(), 1, 0), 1U); |
| ASSERT_EQ(a.find(c.data(), 9, 0), 9U); |
| ASSERT_EQ(a.find(c.data(), Piece::npos, 0), Piece::npos); |
| ASSERT_EQ(b.find(c.data(), Piece::npos, 0), Piece::npos); |
| // empty string nonsense |
| ASSERT_EQ(d.find(b.data(), 4, 0), Piece::npos); |
| ASSERT_EQ(e.find(b.data(), 7, 0), Piece::npos); |
| |
| ASSERT_EQ(a.find(b.data(), 1), Piece::npos); |
| ASSERT_EQ(a.find(c.data(), 9), 23U); |
| ASSERT_EQ(a.find(c.data(), Piece::npos), Piece::npos); |
| ASSERT_EQ(b.find(c.data(), Piece::npos), Piece::npos); |
| // empty string nonsense |
| ASSERT_EQ(d.find(b.data(), 4), Piece::npos); |
| ASSERT_EQ(e.find(b.data(), 7), Piece::npos); |
| |
| ASSERT_EQ(a.rfind(b), 0U); |
| ASSERT_EQ(a.rfind(b, 1), 0U); |
| ASSERT_EQ(a.rfind(c), 23U); |
| ASSERT_EQ(a.rfind(c, 22U), Piece::npos); |
| ASSERT_EQ(a.rfind(c, 1U), Piece::npos); |
| ASSERT_EQ(a.rfind(c, 0U), Piece::npos); |
| ASSERT_EQ(b.rfind(c), Piece::npos); |
| ASSERT_EQ(b.rfind(c, 0U), Piece::npos); |
| ASSERT_EQ(a.rfind(d), |
| static_cast<size_t>(a.rfind(std::basic_string<TypeParam>()))); |
| ASSERT_EQ(a.rfind(e), a.rfind(std::basic_string<TypeParam>())); |
| ASSERT_EQ(a.rfind(d), |
| static_cast<size_t>(std::basic_string<TypeParam>(a).rfind( |
| std::basic_string<TypeParam>()))); |
| ASSERT_EQ(a.rfind(e), std::basic_string<TypeParam>(a).rfind( |
| std::basic_string<TypeParam>())); |
| ASSERT_EQ(a.rfind(d, 12), 12U); |
| ASSERT_EQ(a.rfind(e, 17), 17U); |
| ASSERT_EQ(a.rfind(g), Piece::npos); |
| ASSERT_EQ(d.rfind(b), Piece::npos); |
| ASSERT_EQ(e.rfind(b), Piece::npos); |
| ASSERT_EQ(d.rfind(b, 4), Piece::npos); |
| ASSERT_EQ(e.rfind(b, 7), Piece::npos); |
| // empty string nonsense |
| ASSERT_EQ(d.rfind(d, 4), std::string().rfind(std::string())); |
| ASSERT_EQ(e.rfind(d, 7), std::string().rfind(std::string())); |
| ASSERT_EQ(d.rfind(e, 4), std::string().rfind(std::string())); |
| ASSERT_EQ(e.rfind(e, 7), std::string().rfind(std::string())); |
| ASSERT_EQ(d.rfind(d), std::string().rfind(std::string())); |
| ASSERT_EQ(e.rfind(d), std::string().rfind(std::string())); |
| ASSERT_EQ(d.rfind(e), std::string().rfind(std::string())); |
| ASSERT_EQ(e.rfind(e), std::string().rfind(std::string())); |
| |
| ASSERT_EQ(g.rfind('o'), 8U); |
| ASSERT_EQ(g.rfind('q'), Piece::npos); |
| ASSERT_EQ(g.rfind('o', 8), 8U); |
| ASSERT_EQ(g.rfind('o', 7), 4U); |
| ASSERT_EQ(g.rfind('o', 3), Piece::npos); |
| ASSERT_EQ(f.rfind(kNul), 3U); |
| ASSERT_EQ(f.rfind(kNul, 12), 3U); |
| ASSERT_EQ(f.rfind('3'), 2U); |
| ASSERT_EQ(f.rfind('5'), 5U); |
| // empty string nonsense |
| ASSERT_EQ(d.rfind('o'), Piece::npos); |
| ASSERT_EQ(e.rfind('o'), Piece::npos); |
| ASSERT_EQ(d.rfind('o', 4), Piece::npos); |
| ASSERT_EQ(e.rfind('o', 7), Piece::npos); |
| |
| ASSERT_EQ(a.rfind(b.data(), 1, 0), 1U); |
| ASSERT_EQ(a.rfind(c.data(), 22U, 0), 22U); |
| ASSERT_EQ(a.rfind(c.data(), 1U, 0), 1U); |
| ASSERT_EQ(a.rfind(c.data(), 0U, 0), 0U); |
| ASSERT_EQ(b.rfind(c.data(), 0U, 0), 0U); |
| ASSERT_EQ(d.rfind(b.data(), 4, 0), 0U); |
| ASSERT_EQ(e.rfind(b.data(), 7, 0), 0U); |
| |
| std::basic_string<TypeParam> one_two_three_four( |
| TestFixture::as_string("one,two:three;four")); |
| std::basic_string<TypeParam> comma_colon(TestFixture::as_string(",:")); |
| ASSERT_EQ(3U, Piece(one_two_three_four).find_first_of(comma_colon)); |
| ASSERT_EQ(a.find_first_of(b), 0U); |
| ASSERT_EQ(a.find_first_of(b, 0), 0U); |
| ASSERT_EQ(a.find_first_of(b, 1), 1U); |
| ASSERT_EQ(a.find_first_of(b, 2), 2U); |
| ASSERT_EQ(a.find_first_of(b, 3), Piece::npos); |
| ASSERT_EQ(a.find_first_of(c), 23U); |
| ASSERT_EQ(a.find_first_of(c, 23), 23U); |
| ASSERT_EQ(a.find_first_of(c, 24), 24U); |
| ASSERT_EQ(a.find_first_of(c, 25), 25U); |
| ASSERT_EQ(a.find_first_of(c, 26), Piece::npos); |
| ASSERT_EQ(g.find_first_of(b), 13U); |
| ASSERT_EQ(g.find_first_of(c), 0U); |
| ASSERT_EQ(a.find_first_of(f), Piece::npos); |
| ASSERT_EQ(f.find_first_of(a), Piece::npos); |
| // empty string nonsense |
| ASSERT_EQ(a.find_first_of(d), Piece::npos); |
| ASSERT_EQ(a.find_first_of(e), Piece::npos); |
| ASSERT_EQ(d.find_first_of(b), Piece::npos); |
| ASSERT_EQ(e.find_first_of(b), Piece::npos); |
| ASSERT_EQ(d.find_first_of(d), Piece::npos); |
| ASSERT_EQ(e.find_first_of(d), Piece::npos); |
| ASSERT_EQ(d.find_first_of(e), Piece::npos); |
| ASSERT_EQ(e.find_first_of(e), Piece::npos); |
| |
| ASSERT_EQ(a.find_first_not_of(b), 3U); |
| ASSERT_EQ(a.find_first_not_of(c), 0U); |
| ASSERT_EQ(b.find_first_not_of(a), Piece::npos); |
| ASSERT_EQ(c.find_first_not_of(a), Piece::npos); |
| ASSERT_EQ(f.find_first_not_of(a), 0U); |
| ASSERT_EQ(a.find_first_not_of(f), 0U); |
| ASSERT_EQ(a.find_first_not_of(d), 0U); |
| ASSERT_EQ(a.find_first_not_of(e), 0U); |
| ASSERT_EQ(a.find_first_not_of(d, 1), 1U); |
| ASSERT_EQ(a.find_first_not_of(e, 1), 1U); |
| ASSERT_EQ(a.find_first_not_of(d, a.size()), Piece::npos); |
| ASSERT_EQ(a.find_first_not_of(e, a.size()), Piece::npos); |
| // empty string nonsense |
| ASSERT_EQ(d.find_first_not_of(a), Piece::npos); |
| ASSERT_EQ(e.find_first_not_of(a), Piece::npos); |
| ASSERT_EQ(d.find_first_not_of(d), Piece::npos); |
| ASSERT_EQ(e.find_first_not_of(d), Piece::npos); |
| ASSERT_EQ(d.find_first_not_of(e), Piece::npos); |
| ASSERT_EQ(e.find_first_not_of(e), Piece::npos); |
| |
| std::basic_string<TypeParam> equals(TestFixture::as_string("====")); |
| Piece h(equals); |
| ASSERT_EQ(h.find_first_not_of('='), Piece::npos); |
| ASSERT_EQ(h.find_first_not_of('=', 3), Piece::npos); |
| ASSERT_EQ(h.find_first_not_of(kNul), 0U); |
| ASSERT_EQ(g.find_first_not_of('x'), 2U); |
| ASSERT_EQ(f.find_first_not_of(kNul), 0U); |
| ASSERT_EQ(f.find_first_not_of(kNul, 3), 4U); |
| ASSERT_EQ(f.find_first_not_of(kNul, 2), 2U); |
| // empty string nonsense |
| ASSERT_EQ(d.find_first_not_of('x'), Piece::npos); |
| ASSERT_EQ(e.find_first_not_of('x'), Piece::npos); |
| ASSERT_EQ(d.find_first_not_of(kNul), Piece::npos); |
| ASSERT_EQ(e.find_first_not_of(kNul), Piece::npos); |
| |
| // Piece g("xx not found bb"); |
| std::basic_string<TypeParam> fifty_six(TestFixture::as_string("56")); |
| Piece i(fifty_six); |
| ASSERT_EQ(h.find_last_of(a), Piece::npos); |
| ASSERT_EQ(g.find_last_of(a), g.size()-1); |
| ASSERT_EQ(a.find_last_of(b), 2U); |
| ASSERT_EQ(a.find_last_of(c), a.size()-1); |
| ASSERT_EQ(f.find_last_of(i), 6U); |
| ASSERT_EQ(a.find_last_of('a'), 0U); |
| ASSERT_EQ(a.find_last_of('b'), 1U); |
| ASSERT_EQ(a.find_last_of('z'), 25U); |
| ASSERT_EQ(a.find_last_of('a', 5), 0U); |
| ASSERT_EQ(a.find_last_of('b', 5), 1U); |
| ASSERT_EQ(a.find_last_of('b', 0), Piece::npos); |
| ASSERT_EQ(a.find_last_of('z', 25), 25U); |
| ASSERT_EQ(a.find_last_of('z', 24), Piece::npos); |
| ASSERT_EQ(f.find_last_of(i, 5), 5U); |
| ASSERT_EQ(f.find_last_of(i, 6), 6U); |
| ASSERT_EQ(f.find_last_of(a, 4), Piece::npos); |
| // empty string nonsense |
| ASSERT_EQ(f.find_last_of(d), Piece::npos); |
| ASSERT_EQ(f.find_last_of(e), Piece::npos); |
| ASSERT_EQ(f.find_last_of(d, 4), Piece::npos); |
| ASSERT_EQ(f.find_last_of(e, 4), Piece::npos); |
| ASSERT_EQ(d.find_last_of(d), Piece::npos); |
| ASSERT_EQ(d.find_last_of(e), Piece::npos); |
| ASSERT_EQ(e.find_last_of(d), Piece::npos); |
| ASSERT_EQ(e.find_last_of(e), Piece::npos); |
| ASSERT_EQ(d.find_last_of(f), Piece::npos); |
| ASSERT_EQ(e.find_last_of(f), Piece::npos); |
| ASSERT_EQ(d.find_last_of(d, 4), Piece::npos); |
| ASSERT_EQ(d.find_last_of(e, 4), Piece::npos); |
| ASSERT_EQ(e.find_last_of(d, 4), Piece::npos); |
| ASSERT_EQ(e.find_last_of(e, 4), Piece::npos); |
| ASSERT_EQ(d.find_last_of(f, 4), Piece::npos); |
| ASSERT_EQ(e.find_last_of(f, 4), Piece::npos); |
| |
| ASSERT_EQ(a.find_last_not_of(b), a.size()-1); |
| ASSERT_EQ(a.find_last_not_of(c), 22U); |
| ASSERT_EQ(b.find_last_not_of(a), Piece::npos); |
| ASSERT_EQ(b.find_last_not_of(b), Piece::npos); |
| ASSERT_EQ(f.find_last_not_of(i), 4U); |
| ASSERT_EQ(a.find_last_not_of(c, 24), 22U); |
| ASSERT_EQ(a.find_last_not_of(b, 3), 3U); |
| ASSERT_EQ(a.find_last_not_of(b, 2), Piece::npos); |
| // empty string nonsense |
| ASSERT_EQ(f.find_last_not_of(d), f.size()-1); |
| ASSERT_EQ(f.find_last_not_of(e), f.size()-1); |
| ASSERT_EQ(f.find_last_not_of(d, 4), 4U); |
| ASSERT_EQ(f.find_last_not_of(e, 4), 4U); |
| ASSERT_EQ(d.find_last_not_of(d), Piece::npos); |
| ASSERT_EQ(d.find_last_not_of(e), Piece::npos); |
| ASSERT_EQ(e.find_last_not_of(d), Piece::npos); |
| ASSERT_EQ(e.find_last_not_of(e), Piece::npos); |
| ASSERT_EQ(d.find_last_not_of(f), Piece::npos); |
| ASSERT_EQ(e.find_last_not_of(f), Piece::npos); |
| ASSERT_EQ(d.find_last_not_of(d, 4), Piece::npos); |
| ASSERT_EQ(d.find_last_not_of(e, 4), Piece::npos); |
| ASSERT_EQ(e.find_last_not_of(d, 4), Piece::npos); |
| ASSERT_EQ(e.find_last_not_of(e, 4), Piece::npos); |
| ASSERT_EQ(d.find_last_not_of(f, 4), Piece::npos); |
| ASSERT_EQ(e.find_last_not_of(f, 4), Piece::npos); |
| |
| ASSERT_EQ(h.find_last_not_of('x'), h.size() - 1); |
| ASSERT_EQ(h.find_last_not_of('='), Piece::npos); |
| ASSERT_EQ(b.find_last_not_of('c'), 1U); |
| ASSERT_EQ(h.find_last_not_of('x', 2), 2U); |
| ASSERT_EQ(h.find_last_not_of('=', 2), Piece::npos); |
| ASSERT_EQ(b.find_last_not_of('b', 1), 0U); |
| // empty string nonsense |
| ASSERT_EQ(d.find_last_not_of('x'), Piece::npos); |
| ASSERT_EQ(e.find_last_not_of('x'), Piece::npos); |
| ASSERT_EQ(d.find_last_not_of(kNul), Piece::npos); |
| ASSERT_EQ(e.find_last_not_of(kNul), Piece::npos); |
| |
| ASSERT_EQ(a.substr(0, 3), b); |
| ASSERT_EQ(a.substr(23), c); |
| ASSERT_EQ(a.substr(23, 3), c); |
| ASSERT_EQ(a.substr(23, 99), c); |
| ASSERT_EQ(a.substr(), a); |
| ASSERT_EQ(a.substr(0), a); |
| ASSERT_EQ(a.substr(3, 2), TestFixture::as_string("de")); |
| ASSERT_EQ(d.substr(0, 99), e); |
| } |
| |
| TYPED_TEST(CommonStringPieceTest, CheckCustom) { |
| std::basic_string<TypeParam> foobar(TestFixture::as_string("foobar")); |
| BasicStringPiece<TypeParam> a(foobar); |
| std::basic_string<TypeParam> s1(TestFixture::as_string("123")); |
| s1 += static_cast<TypeParam>('\0'); |
| s1 += TestFixture::as_string("456"); |
| BasicStringPiece<TypeParam> b(s1); |
| BasicStringPiece<TypeParam> e; |
| std::basic_string<TypeParam> s2; |
| |
| // remove_prefix |
| BasicStringPiece<TypeParam> c(a); |
| c.remove_prefix(3); |
| ASSERT_EQ(c, TestFixture::as_string("bar")); |
| c = a; |
| c.remove_prefix(0); |
| ASSERT_EQ(c, a); |
| c.remove_prefix(c.size()); |
| ASSERT_EQ(c, e); |
| |
| // remove_suffix |
| c = a; |
| c.remove_suffix(3); |
| ASSERT_EQ(c, TestFixture::as_string("foo")); |
| c = a; |
| c.remove_suffix(0); |
| ASSERT_EQ(c, a); |
| c.remove_suffix(c.size()); |
| ASSERT_EQ(c, e); |
| |
| // assignment |
| c = foobar.c_str(); |
| ASSERT_EQ(c, a); |
| c = {foobar.c_str(), 6}; |
| ASSERT_EQ(c, a); |
| c = {foobar.c_str(), 0}; |
| ASSERT_EQ(c, e); |
| c = {foobar.c_str(), 7}; // Note, has an embedded NULL |
| ASSERT_NE(c, a); |
| |
| // operator STRING_TYPE() |
| std::basic_string<TypeParam> s5(std::basic_string<TypeParam>(a).c_str(), |
| 7); // Note, has an embedded NULL |
| ASSERT_EQ(c, s5); |
| std::basic_string<TypeParam> s6(e); |
| ASSERT_TRUE(s6.empty()); |
| } |
| |
| TEST(StringPieceTest, CheckCustom) { |
| StringPiece a("foobar"); |
| std::string s1("123"); |
| s1 += '\0'; |
| s1 += "456"; |
| StringPiece b(s1); |
| StringPiece e; |
| std::string s2; |
| |
| StringPiece c; |
| c = {"foobar", 6}; |
| ASSERT_EQ(c, a); |
| c = {"foobar", 0}; |
| ASSERT_EQ(c, e); |
| c = {"foobar", 7}; |
| ASSERT_NE(c, a); |
| } |
| |
| TYPED_TEST(CommonStringPieceTest, CheckNULL) { |
| BasicStringPiece<TypeParam> s; |
| ASSERT_EQ(s.data(), nullptr); |
| ASSERT_EQ(s.size(), 0U); |
| |
| std::basic_string<TypeParam> str(s); |
| ASSERT_EQ(str.length(), 0U); |
| ASSERT_EQ(str, std::basic_string<TypeParam>()); |
| } |
| |
| TYPED_TEST(CommonStringPieceTest, CheckComparisons2) { |
| std::basic_string<TypeParam> alphabet( |
| TestFixture::as_string("abcdefghijklmnopqrstuvwxyz")); |
| std::basic_string<TypeParam> alphabet_z( |
| TestFixture::as_string("abcdefghijklmnopqrstuvwxyzz")); |
| std::basic_string<TypeParam> alphabet_y( |
| TestFixture::as_string("abcdefghijklmnopqrstuvwxyy")); |
| BasicStringPiece<TypeParam> abc(alphabet); |
| |
| // check comparison operations on strings longer than 4 bytes. |
| ASSERT_EQ(abc, BasicStringPiece<TypeParam>(alphabet)); |
| ASSERT_EQ(abc.compare(BasicStringPiece<TypeParam>(alphabet)), 0); |
| |
| ASSERT_TRUE(abc < BasicStringPiece<TypeParam>(alphabet_z)); |
| ASSERT_LT(abc.compare(BasicStringPiece<TypeParam>(alphabet_z)), 0); |
| |
| ASSERT_TRUE(abc > BasicStringPiece<TypeParam>(alphabet_y)); |
| ASSERT_GT(abc.compare(BasicStringPiece<TypeParam>(alphabet_y)), 0); |
| } |
| |
| TYPED_TEST(CommonStringPieceTest, StringCompareNotAmbiguous) { |
| ASSERT_TRUE(TestFixture::as_string("hello").c_str() == |
| TestFixture::as_string("hello")); |
| ASSERT_TRUE(TestFixture::as_string("hello").c_str() < |
| TestFixture::as_string("world")); |
| } |
| |
| TYPED_TEST(CommonStringPieceTest, HeterogenousStringPieceEquals) { |
| std::basic_string<TypeParam> hello(TestFixture::as_string("hello")); |
| |
| ASSERT_EQ(BasicStringPiece<TypeParam>(hello), hello); |
| ASSERT_EQ(hello.c_str(), BasicStringPiece<TypeParam>(hello)); |
| } |
| |
| // std::u16string-specific stuff |
| TEST(StringPiece16Test, CheckSTL) { |
| // Check some non-ascii characters. |
| std::u16string fifth(u"123"); |
| fifth.push_back(0x0000); |
| fifth.push_back(0xd8c5); |
| fifth.push_back(0xdffe); |
| StringPiece16 f(fifth); |
| |
| ASSERT_EQ(f[3], '\0'); |
| ASSERT_EQ(f[5], 0xdffe); |
| |
| ASSERT_EQ(f.size(), 6U); |
| } |
| |
| TEST(StringPiece16Test, CheckConversion) { |
| // Make sure that we can convert from UTF8 to UTF16 and back. We use a |
| // character (G clef) outside the BMP to test this. |
| const char* kTest = "\U0001D11E"; |
| ASSERT_EQ(UTF16ToUTF8(UTF8ToUTF16(kTest)), kTest); |
| } |
| |
| TYPED_TEST(CommonStringPieceTest, CheckConstructors) { |
| std::basic_string<TypeParam> str(TestFixture::as_string("hello world")); |
| std::basic_string<TypeParam> empty; |
| |
| ASSERT_EQ(str, BasicStringPiece<TypeParam>(str)); |
| ASSERT_EQ(str, BasicStringPiece<TypeParam>(str.c_str())); |
| ASSERT_TRUE(TestFixture::as_string("hello") == |
| BasicStringPiece<TypeParam>(str.c_str(), 5)); |
| ASSERT_EQ( |
| empty, |
| BasicStringPiece<TypeParam>( |
| str.c_str(), |
| static_cast<typename BasicStringPiece<TypeParam>::size_type>(0))); |
| ASSERT_EQ(empty, BasicStringPiece<TypeParam>()); |
| ASSERT_TRUE( |
| empty == |
| BasicStringPiece<TypeParam>( |
| nullptr, |
| static_cast<typename BasicStringPiece<TypeParam>::size_type>(0))); |
| ASSERT_EQ(empty, BasicStringPiece<TypeParam>()); |
| ASSERT_EQ(empty, BasicStringPiece<TypeParam>(empty)); |
| } |
| |
| TEST(StringPieceTest, ConstexprCtor) { |
| { |
| constexpr StringPiece piece; |
| std::ignore = piece; |
| } |
| |
| { |
| constexpr StringPiece piece("abc"); |
| std::ignore = piece; |
| } |
| |
| { |
| constexpr StringPiece piece("abc", 2); |
| std::ignore = piece; |
| } |
| } |
| |
| TEST(StringPieceTest, OutOfBoundsDeath) { |
| { |
| constexpr StringPiece piece; |
| ASSERT_DEATH_IF_SUPPORTED(piece[0], ""); |
| } |
| |
| { |
| constexpr StringPiece piece; |
| ASSERT_DEATH_IF_SUPPORTED(piece.front(), ""); |
| } |
| |
| { |
| constexpr StringPiece piece; |
| ASSERT_DEATH_IF_SUPPORTED(piece.back(), ""); |
| } |
| |
| { |
| StringPiece piece; |
| ASSERT_DEATH_IF_SUPPORTED(piece.remove_suffix(1), ""); |
| } |
| |
| { |
| StringPiece piece; |
| ASSERT_DEATH_IF_SUPPORTED(piece.remove_prefix(1), ""); |
| } |
| |
| { |
| StringPiece piece; |
| ASSERT_DEATH_IF_SUPPORTED(piece.copy(nullptr, 0, 1), ""); |
| } |
| |
| { |
| StringPiece piece; |
| ASSERT_DEATH_IF_SUPPORTED(piece.substr(1), ""); |
| } |
| } |
| |
| TEST(StringPieceTest, InvalidLengthDeath) { |
| int length = -1; |
| ASSERT_DEATH_IF_SUPPORTED({ StringPiece piece("hello", length); }, ""); |
| } |
| |
| TEST(StringPieceTest, ConstexprData) { |
| { |
| constexpr StringPiece piece; |
| static_assert(piece.data() == nullptr, ""); |
| } |
| |
| { |
| constexpr StringPiece piece("abc"); |
| static_assert(piece.data()[0] == 'a', ""); |
| static_assert(piece.data()[1] == 'b', ""); |
| static_assert(piece.data()[2] == 'c', ""); |
| } |
| |
| { |
| constexpr StringPiece piece("def", 2); |
| static_assert(piece.data()[0] == 'd', ""); |
| static_assert(piece.data()[1] == 'e', ""); |
| } |
| } |
| |
| TEST(StringPieceTest, ConstexprSize) { |
| { |
| constexpr StringPiece piece; |
| static_assert(piece.size() == 0, ""); |
| } |
| |
| { |
| constexpr StringPiece piece("abc"); |
| static_assert(piece.size() == 3, ""); |
| } |
| |
| { |
| constexpr StringPiece piece("def", 2); |
| static_assert(piece.size() == 2, ""); |
| } |
| } |
| |
| TEST(StringPieceTest, ConstexprFront) { |
| static_assert(StringPiece("abc").front() == 'a', ""); |
| } |
| |
| TEST(StringPieceTest, ConstexprBack) { |
| static_assert(StringPiece("abc").back() == 'c', ""); |
| } |
| |
| TEST(StringPieceTest, Compare) { |
| constexpr StringPiece piece = "def"; |
| |
| static_assert(piece.compare("ab") == 1, ""); |
| static_assert(piece.compare("abc") == 1, ""); |
| static_assert(piece.compare("abcd") == 1, ""); |
| static_assert(piece.compare("de") == 1, ""); |
| static_assert(piece.compare("def") == 0, ""); |
| static_assert(piece.compare("defg") == -1, ""); |
| static_assert(piece.compare("gh") == -1, ""); |
| static_assert(piece.compare("ghi") == -1, ""); |
| static_assert(piece.compare("ghij") == -1, ""); |
| |
| static_assert(piece.compare(0, 0, "") == 0, ""); |
| static_assert(piece.compare(0, 1, "d") == 0, ""); |
| static_assert(piece.compare(0, 2, "de") == 0, ""); |
| static_assert(piece.compare(0, 3, "def") == 0, ""); |
| static_assert(piece.compare(1, 0, "") == 0, ""); |
| static_assert(piece.compare(1, 1, "e") == 0, ""); |
| static_assert(piece.compare(1, 2, "ef") == 0, ""); |
| static_assert(piece.compare(1, 3, "ef") == 0, ""); |
| static_assert(piece.compare(2, 0, "") == 0, ""); |
| static_assert(piece.compare(2, 1, "f") == 0, ""); |
| static_assert(piece.compare(2, 2, "f") == 0, ""); |
| static_assert(piece.compare(2, 3, "f") == 0, ""); |
| static_assert(piece.compare(3, 0, "") == 0, ""); |
| static_assert(piece.compare(3, 1, "") == 0, ""); |
| static_assert(piece.compare(3, 2, "") == 0, ""); |
| static_assert(piece.compare(3, 3, "") == 0, ""); |
| |
| static_assert(piece.compare(0, 0, "def", 0) == 0, ""); |
| static_assert(piece.compare(0, 1, "def", 1) == 0, ""); |
| static_assert(piece.compare(0, 2, "def", 2) == 0, ""); |
| static_assert(piece.compare(0, 3, "def", 3) == 0, ""); |
| static_assert(piece.compare(1, 0, "ef", 0) == 0, ""); |
| static_assert(piece.compare(1, 1, "ef", 1) == 0, ""); |
| static_assert(piece.compare(1, 2, "ef", 2) == 0, ""); |
| static_assert(piece.compare(1, 3, "ef", 2) == 0, ""); |
| static_assert(piece.compare(2, 0, "f", 0) == 0, ""); |
| static_assert(piece.compare(2, 1, "f", 1) == 0, ""); |
| static_assert(piece.compare(2, 2, "f", 1) == 0, ""); |
| static_assert(piece.compare(2, 3, "f", 1) == 0, ""); |
| static_assert(piece.compare(3, 0, "", 0) == 0, ""); |
| static_assert(piece.compare(3, 1, "", 0) == 0, ""); |
| static_assert(piece.compare(3, 2, "", 0) == 0, ""); |
| static_assert(piece.compare(3, 3, "", 0) == 0, ""); |
| |
| static_assert(piece.compare(0, 0, "def", 0, 0) == 0, ""); |
| static_assert(piece.compare(0, 1, "def", 0, 1) == 0, ""); |
| static_assert(piece.compare(0, 2, "def", 0, 2) == 0, ""); |
| static_assert(piece.compare(0, 3, "def", 0, 3) == 0, ""); |
| static_assert(piece.compare(1, 0, "def", 1, 0) == 0, ""); |
| static_assert(piece.compare(1, 1, "def", 1, 1) == 0, ""); |
| static_assert(piece.compare(1, 2, "def", 1, 2) == 0, ""); |
| static_assert(piece.compare(1, 3, "def", 1, 3) == 0, ""); |
| static_assert(piece.compare(2, 0, "def", 2, 0) == 0, ""); |
| static_assert(piece.compare(2, 1, "def", 2, 1) == 0, ""); |
| static_assert(piece.compare(2, 2, "def", 2, 2) == 0, ""); |
| static_assert(piece.compare(2, 3, "def", 2, 3) == 0, ""); |
| static_assert(piece.compare(3, 0, "def", 3, 0) == 0, ""); |
| static_assert(piece.compare(3, 1, "def", 3, 1) == 0, ""); |
| static_assert(piece.compare(3, 2, "def", 3, 2) == 0, ""); |
| static_assert(piece.compare(3, 3, "def", 3, 3) == 0, ""); |
| } |
| |
| TEST(StringPieceTest, Substr) { |
| constexpr StringPiece piece = "abcdefghijklmnopqrstuvwxyz"; |
| |
| static_assert(piece.substr(0, 2) == "ab", ""); |
| static_assert(piece.substr(0, 3) == "abc", ""); |
| static_assert(piece.substr(0, 4) == "abcd", ""); |
| static_assert(piece.substr(3, 2) == "de", ""); |
| static_assert(piece.substr(3, 3) == "def", ""); |
| static_assert(piece.substr(23) == "xyz", ""); |
| static_assert(piece.substr(23, 3) == "xyz", ""); |
| static_assert(piece.substr(23, 99) == "xyz", ""); |
| static_assert(piece.substr() == piece, ""); |
| static_assert(piece.substr(0) == piece, ""); |
| static_assert(piece.substr(0, 99) == piece, ""); |
| } |
| |
| TEST(StringPieceTest, Find) { |
| constexpr StringPiece foobar("foobar", 6); |
| constexpr StringPiece foo = foobar.substr(0, 3); |
| constexpr StringPiece bar = foobar.substr(3); |
| |
| // find |
| static_assert(foobar.find(bar, 0) == 3, ""); |
| static_assert(foobar.find('o', 0) == 1, ""); |
| static_assert(foobar.find("ox", 0, 1) == 1, ""); |
| static_assert(foobar.find("ox", 0) == StringPiece::npos, ""); |
| |
| // rfind |
| static_assert(foobar.rfind(bar, 5) == 3, ""); |
| static_assert(foobar.rfind('o', 5) == 2, ""); |
| static_assert(foobar.rfind("ox", 5, 1) == 2, ""); |
| static_assert(foobar.rfind("ox", 5) == StringPiece::npos, ""); |
| |
| // find_first_of |
| static_assert(foobar.find_first_of(foo, 2) == 2, ""); |
| static_assert(foobar.find_first_of('o', 2) == 2, ""); |
| static_assert(foobar.find_first_of("ox", 2, 2) == 2, ""); |
| static_assert(foobar.find_first_of("ox", 2) == 2, ""); |
| |
| // find_last_of |
| static_assert(foobar.find_last_of(foo, 5) == 2, ""); |
| static_assert(foobar.find_last_of('o', 5) == 2, ""); |
| static_assert(foobar.find_last_of("ox", 5, 2) == 2, ""); |
| static_assert(foobar.find_last_of("ox", 5) == 2, ""); |
| |
| // find_first_not_of |
| static_assert(foobar.find_first_not_of(foo, 2) == 3, ""); |
| static_assert(foobar.find_first_not_of('o', 2) == 3, ""); |
| static_assert(foobar.find_first_not_of("ox", 2, 2) == 3, ""); |
| static_assert(foobar.find_first_not_of("ox", 2) == 3, ""); |
| |
| // find_last_not_of |
| static_assert(foobar.find_last_not_of(bar, 5) == 2, ""); |
| static_assert(foobar.find_last_not_of('a', 4) == 3, ""); |
| static_assert(foobar.find_last_not_of("ox", 2, 2) == 0, ""); |
| static_assert(foobar.find_last_not_of("ox", 2) == 0, ""); |
| } |
| |
| // Test that `base::StringPiece` and `std::string_view` are interoperable. |
| TEST(StringPieceTest, StringPieceToStringView) { |
| constexpr StringPiece kPiece = "foo"; |
| constexpr std::string_view kView = kPiece; |
| static_assert(kPiece.data() == kView.data()); |
| static_assert(kPiece.size() == kView.size()); |
| } |
| |
| TEST(StringPieceTest, StringViewToStringPiece) { |
| constexpr std::string_view kView = "bar"; |
| constexpr StringPiece kPiece = kView; |
| static_assert(kView.data() == kPiece.data()); |
| static_assert(kView.size() == kPiece.size()); |
| } |
| |
| } // namespace base |
